Products Drying

Continuous Flow Dryer DW

PETKUS Continuous Flow Dryers Type DW are designed for drying grain, corn, oilseeds, and free flowing pellets such such as clay mineral and straw pellets. Three models (1500, 2500, 4000) with a capacity from 8 t/h to 48 t/h (based on wheat) are available. The continuous flow dryers of the "DW"-series are equipped with an efficient stainless steel heat exchanger, which separates the flue gas from the drying air. Alternative heating systems such as steam or hot water heat exchangers are also available on request.

Product enters the top of the dryer column and flows to the discharge over conical, inverted V-shaped air ducts arranged in an alternating pattern.  During the process the product is continuously mixed and the hot air from the burner is evenly distributed through the product. The required airflow is generated by axial flow fans, positioned on the roof of the exhaust air duct. The hot air is generated by both the burner and the heat exchanger. The air speed can be adjusted using a false air flap within the dryer column.  Louver dampers behind the axial flow fans close during product infeed and prevent the discharge of dust into the exhaust air.

Characteristics
  • Model in galvanized sheet steel
  • Gentle and even drying
  • Operated with gas or oil burner
  • Indirect heating through heat exchangers
  • The exhaust gases from the combustion process are separated from the processing air
  • Use of steam, hot water and thermal oil heat exchangers is possible
  • Three series designed for different capacities
  • Conical air ducts increase the capacity by 10-12%
  • Insulated hot air duct
  • Low dust emission, complies with EU-limits
  • Simple and quick assembly as no scaffolding is required
  • Relatively small floor space
  • Storage tank with level sensor
  • Control cabinet with touch panel and control software
    DW 15 DW 25 DW 40
Length (mm) 6 020 8 160 8 160
Width (mm) 1 570 2 440 3 890
Number of section   6 - 14 10 - 18 12 - 20
Height (mm) 10 885 - 15 335 11 775 - 18 895 13 555 - 20 675
Output¹ (t/h) 5 - 15 15 - 30 30 - 50

¹ based on wheat, consumer product